Selective evaporation of the (LiCl – KCl)eut–BaCl2–SrCl2–NdCl3 molten mixtures components at reduced pressures

A. B. Salyulev, N. I. Moskalenko, V. Yu. Shishkin, Yu. P. Zaikov. 

ABSTRACT

Experimental studies of the distillation of chlorides from their molten mixtures under various conditions were carried out. In all cases, BaCl₂, SrCl₂, NdCl₃ (1–2 mol. %) dilute solutions, as representatives of alkali, alkaline earth and rare earth metal chlorides solutions in the molten eutectic LiCl–KCl mixture, were subjected to evaporation at the reduced (up to ~1 Pa) pressures and temperatures of 753–1033°C. The compositions of sublimates and molten salts before and after distillation were analyzed. Conclusions about the degree of distillation, the selectivity of evaporation of the components of molten mixtures, and the relative volatility of various chlorides are made.

KEYWORDS:

distillation, evaporation, molten mixtures, eutectic LiCl–KCl, BaCl₂, SrCl₂, NdCl₃.

DOI:10.31857/S023501062004009X